ACI Pressure Sensors-Transmitters
In the engineering of ACI pressure sensors and transmitters, one finds not just reliable and accurate pressure measurement across HVAC and building automation systems but also an achievement of stable performance that is a hallmark of ACI products. Technicians can monitor air, gas, and liquid pressure and receive output signals that integrate well into control systems. These sensors are flexible enough for use across many applications, from cleanrooms to pump systems, and seem equally at home in both commercial and industrial environments.
One of the things that ACI has going for it is a wide range of options in their pressure sensors to cover various applications. They offer differential pressure sensors for airflow, filter monitoring, and duct/static pressure measurements, but they also have gauge and vacuum models (used for a variety of liquid and gas systems) and even wet-media pressure transmitters that can take an application down to an environment where moisture and condensation may be present and withstand it. This is a versatile product line, with pressure sensors that have been tested under a wide variety of conditions.
FAQs
What are ACI pressure sensors and transmitters used for?
They measure air, gas, and liquid pressure in HVAC systems, building automation, hydronic loops, cleanrooms, and industrial equipment.
What types of ACI pressure sensors are available?
ACI offers differential, gauge, vacuum, and wet-media pressure sensors along with multi-range and smart transmitter models.
What is a differential pressure sensor used for?
It measures small pressure differences, commonly used for duct static pressure, filter monitoring, airflow control, and room pressurization.
Do ACI sensors work with liquids or corrosive media?
Wet-media models are specifically built to handle liquids, condensation, and corrosive environments where standard air-only sensors fail.
What output signals do ACI pressure transmitters support?
Most models offer 0–10V or 4–20mA outputs, while smart versions may include BACnet, Modbus, or other communication protocols.
Instrumentation: Elements & Transmitters
2 pieces of hardware used in modern day instrumentation: measuring elements and transmitters.
Measuring Elements
Measuring elements are the part of the device that performs the measurement. For example, the measuring element of a pressure transducer is the part that is actually lowered into a tank that will take a pressure measurement. The measuring element of a flow meter is the part that actually measures the flow and an RTD or thermocouple takes the temperature measurement.
Transmitters
Transmitters collect information from measuring elements and sends the information to where it is needed. The transmitter interfaces with the measuring element and interprets the information. It then sends that information to a PLC, RTU or some other type of control unit. In many cases, the transmitter has the ability to communicate the information via multiple communication protocols. This may be necessary when the measuring element does not send the same type of signal that is needed by the controller. For example, it may be necessary to convert a temperature reading from a thermocouple to a 420 milliamp signal that can be received by a local PLC.